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U. N. Reservoir Dam
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U. N. Reservoir Dam Share
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Overview Share
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NO Town, Montana
Fire Protection / Stock / Small Fish Pond
Privately owned
Built in 1940

U. N. Reservoir Dam is an earth dam built on the Marietta Coulee River and is located in NO Town, Montana. It was built in 1940 for the purpose of fire protection / stock / small fish pond.

The dam is privately owned by Margret L. Smith.

Location
U. N. Reservoir Dam
NO Town, Montana, U.S.
Dam type
Earth
Dam type
Fire protection / Stock / Small fish pond
Purpose
Unknown
Foundation type
Unknown
Core type
Ownership Share
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Margret L. Smith
Owner
Private

U. N. Reservoir Dam is privately owned by Margret L. Smith.

Construction Share
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1940
Completed
Marietta Coulee River
River built on
U. N. Reservoir Dam was built in 1940.
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Summary
Dam length 1,100 feet
Dam height 20 feet
Hydraulic height 20 feet
Max storage 124 acre feet
Normal storage 100 acre feet
1,100 feet
Dam length

Length of the dam is defined as the length along the top of the dam. This also includes the spillway, powerplant, navigation lock, fish pass, etc., where these form part of the length of the dam. If detached from the dam, these structures should not be included.

20 feet
Dam height

Height of the dam is defined as the vertical distance between the lowest point on the crest of the dam and the lowest point in the original streambed.

20 feet
Hydraulic height

Hydraulic height of the dam is defined as the vertical difference between the maximum design water level and the lowest point in the original streambed.

124 acre feet
Max storage

Maximum storage is defined as the total storage space in a reservoir below the maximum attainable water surface elevation, including any surcharge storage.

100 acre feet
Normal storage

Normal storage is defined as the total storage space in a reservoir below the normal retention level, including dead and inactive storage and excluding any flood control or surcharge storage. For normally dry flood control dams, the normal storage will be a zero value.

Safety Share
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Low
Downstream potential hazard

Dams assigned the low hazard potential classification are those where failure or misoperation results in no probable loss of human life and low economic and/or environ-mental losses. Losses are principally limited to the owner’s property.

Not required
Emergency action plan

An emergency action plan is defined as a plan of action to be taken to reduce the potential for property damage and loss of life in an area affected by a dam failure or large flood.

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Latitude 48
Longitude -109
NID ID (National ID) MT00290

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